Default No Sim Card Error after upgrade...

Hi guys,

Set the scene - was running a custom 4.3 rom, flashed Stock 4.3 rom and got everything working. During the day I kept getting a No SIM card error.... If I remove the SIM card and reinsert it was fine or if I rebooted my phone it was fine - but only for an hour or so. It got worse and more frequent as the day went by....

Unfortunately I can't get it to work at all now - permenant No SIM card!!!

When I got home I flashed an even newer 4.3 firmware from samfirmware for the UK (BTU version I'm unlocked) - baseband I9505XXUENA4 and the same for the build. I was hoping this may fix my issue, but NO still the same!!!

It's not the SIM card as it works in my Note2 and I think it must be software related somewhere as it only started happening after my flashing of stock etc yesterday....

Anyone have any ideas of what it could be???

Do I need to flash a csc file or a different modem???
Would going back to 4.2 help (I know this will void KNOX but don't care as my phone is useless as is)

Just some help would really be appreciated!!!



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